Joe Khalife

Title: Innovations by Joe Khalife

Introduction

Joe Khalife is an accomplished inventor based in Costa Mesa, CA. He has made significant contributions to the field of navigation systems, holding a total of 8 patents. His work focuses on enhancing vehicular localization and positioning technologies.

Latest Patents

One of Khalife's latest patents is a lane-level navigation system for ground vehicles that utilizes lidar and cellular signals. This innovative system integrates lidar data with pseudoranges from ambient cellular LTE towers. It employs an Iterative Closest Point (ICP) algorithm to extract odometry measurements from successive lidar scans. The method includes a robust feature extraction technique to detect edge lines and feature points from the lidar's point cloud. Additionally, it features a point registration technique that uses a maximum likelihood approach to estimate the covariance of odometry error, which is crucial for Extended Kalman Filter (EKF) propagation. The system operates in two modes: a mapping mode when GNSS signals are available and a SLAM mode when they are not. Continuous estimation of cellular transmitter states, including position and clock biases, is performed in both modes. Simulation and experimental results validate the accuracy of this system, providing lane-level localization without reliance on GNSS signals.

Another notable patent is for a receiver design for Doppler positioning using low Earth orbit (LEO) satellites and differential carrier phase measurements. This invention outlines system configurations and processes for determining position based on LEO satellite signals. The framework includes performing Doppler frequency measurements for received quadrature phase shift keying (QPSK) signals. It also incorporates channel tracking operations to determine Doppler shift measurements and a navigation filter to assess clock drift based on these measurements. The system can determine the position of a device using LEO satellite signal sources and can cancel the effects of ionospheric and tropospheric delays on carrier phase measurements.

Career Highlights

Joe Khalife is affiliated with the University of California, where he continues to innovate and contribute to advancements in navigation technology. His work has garnered attention for its practical applications in real-world scenarios.

Collaborations

Khalife collaborates with notable colleagues such as Zak M Kassas and Kimia Shamaei, further enhancing the impact of his research and inventions.

Conclusion

Joe Khalife's contributions to navigation systems exemplify the intersection of technology and innovation. His patents reflect a